CMakeLists.txt

#
# Copyright Quadrivium LLC
# All Rights Reserved
# SPDX-License-Identifier: Apache-2.0
#

cmake_minimum_required(VERSION 3.12)

if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.27")
  cmake_policy(SET CMP0144 NEW)
endif ()

find_program(CCACHE_FOUND ccache)
if (CCACHE_FOUND)
  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
endif (CCACHE_FOUND)


if (NOT DEFINED CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "")
endif ()

if(NOT ${CMAKE_BUILD_TYPE} MATCHES "^(Debug|Release|RelWithDebInfo)$")
  fatal_error("CMAKE_BUILD_TYPE is set to ${CMAKE_BUILD_TYPE} but should be one of [Debug, Release, RelWithDebInfo]")
endif()

if(${CMAKE_BUILD_TYPE} MATCHES "^RelWithDebInfo$")
  set(HUNTER_CONFIGURATION_TYPES "Release" CACHE STRING "")
else()
  set(HUNTER_CONFIGURATION_TYPES "${CMAKE_BUILD_TYPE}" CACHE STRING "")
endif()

set(CMAKE_TOOLCHAIN_FILE
    "${CMAKE_SOURCE_DIR}/cmake/toolchain/cxx20.cmake"
    CACHE FILEPATH "Default toolchain")

# SHA1 hash of the WasmEdge repository archive.
# Required to separate cached runtimes
# compiled with different WasmEdge versions.
set(WASMEDGE_ID 58aea400de9179ad3e314c7e84fd4da345b8a643)

include("cmake/Hunter/init.cmake")

add_compile_options(-gdwarf-4)
project(kagome
    VERSION 0.9.3
    LANGUAGES C CXX
)

include(cmake/print.cmake)
print("C flags: ${CMAKE_C_FLAGS}")
print("CXX flags: ${CMAKE_CXX_FLAGS}")
print("Using CMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}")

set(THREADS_PREFER_PTHREAD_FLAG TRUE)
find_package(Threads)
link_libraries(Threads::Threads)
if (THREADS_HAVE_PTHREAD_ARG)
  link_libraries(pthread)
endif ()

if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  link_libraries(atomic)
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  link_libraries(atomic)
endif ()

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# cmake-format: off
option(TESTING "Build and run test suite" ON)
option(CLANG_FORMAT "Enable clang-format target" ON)
option(CLANG_TIDY "Enable clang-tidy checks during compilation" OFF)
option(COVERAGE "Enable generation of coverage info" OFF)
option(EMBEDDINGS "Embed developers assets" ON)
option(PROFILING "Enable internal profiling instruments" OFF)
option(BACKWARD "Enable stacktrace logging instruments" ON)
option(CLEAR_OBJS "Clear object files" OFF)
option(WERROR "Turn all warnings into errors" OFF)

if (NOT ($ENV{CI}) OR NOT ($ENV{GITHUB_ACTIONS}))
  set(_EXTERNAL_PROJECT_DEFAULT ON)
endif ()
option(EXTERNAL_PROJECT "Build external project" ${_EXTERNAL_PROJECT_DEFAULT})

set(WASM_COMPILER WasmEdge CACHE STRING "WebAssembly compiler built into Kagome: one of [WAVM, WasmEdge]")

if (NOT ${WASM_COMPILER} MATCHES "^(WAVM|WasmEdge)$")
  fatal_error("WASM_COMPILER is set to ${WASM_COMPILER} but should be one of [WAVM, WasmEdge]")
endif ()

# sanitizers will be enabled only for Kagome, and will be disabled for dependencies
option(ASAN "Enable address sanitizer" OFF)
option(LSAN "Enable leak sanitizer" OFF)
option(MSAN "Enable memory sanitizer" OFF)
option(TSAN "Enable thread sanitizer" OFF)
option(UBSAN "Enable UB sanitizer" OFF)
# cmake-format: on

set(RECOMMENDED_CLANG_FORMAT_VERSION 16)

include(CheckCXXCompilerFlag)
include(cmake/dependencies.cmake)
include(cmake/functions.cmake)

include(cmake/san.cmake)

# setup compilation flags
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "^(AppleClang|Clang|GNU)$")
  # cmake-format: off

  # enable those flags
  add_flag(-fdiagnostics-show-template-tree)

  add_flag(-Wall)
  add_flag(-Wextra)
  add_flag(-Woverloaded-virtual)     # warn if you overload (not override) a virtual function
  add_flag(-Wformat=2)               # warn on security issues around functions that format output (ie printf)
  add_flag(-Wmisleading-indentation) # (only in GCC >= 6.0) warn if indentation implies blocks where blocks do not exist
  add_flag(-Wduplicated-cond)        # (only in GCC >= 6.0) warn if if / else chain has duplicated conditions
  add_flag(-Wduplicated-branches)    # (only in GCC >= 7.0) warn if if / else branches have duplicated code
  add_flag(-Wnull-dereference)       # (only in GCC >= 6.0) warn if a null dereference is detected
  add_flag(-Wdouble-promotion)       # (GCC >= 4.6, Clang >= 3.8) warn if float is implicit promoted to double
  add_flag(-Wsign-compare)
  add_flag(-Wtype-limits)            # size_t - size_t >= 0 -> always true

  # disable those flags
  add_flag(-Wno-unused-command-line-argument)    # clang: warning: argument unused during compilation: '--coverage' [-Wunused-command-line-argument]
  add_flag(-Wno-unused-parameter)    # prints too many useless warnings
  add_flag(-Wno-format-nonliteral)   # prints way too many warnings from spdlog
  add_flag(-Wno-gnu-zero-variadic-macro-arguments)   # https://stackoverflow.com/questions/21266380/is-the-gnu-zero-variadic-macro-arguments-safe-to-ignore

  if(WERROR)
    add_flag(-Werror)                # turn all warnings into errors
  endif()

  # cmake-format: on
  if ((("${CMAKE_CXX_COMPILER_ID}" MATCHES "^(AppleClang|Clang)$")
      AND (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "12.0"))
      OR (("${CMAKE_CXX_COMPILER_ID}" MATCHES "^(GNU)$")
      AND (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "9.0")))
    # use new options format for clang >= 12 and gnu >= 9
    # cmake-format: off
    add_flag(-Werror=unused-lambda-capture)  # error if lambda capture is unused
    add_flag(-Werror=return-type)      # warning: control reaches end of non-void function [-Wreturn-type]
    add_flag(-Werror=sign-compare)     # warn the user if they compare a signed and unsigned numbers
    # breaks soralog headers
    # add_flag(-Werror=reorder)          # field '$1' will be initialized after field '$2'
    add_flag(-Werror=mismatched-tags)  # warning: class '$1' was previously declared as struct
    add_flag(-Werror=switch)  # unhandled values in a switch statement
    # cmake-format: on
  else ()
    # promote to errors
    # cmake-format: off
    add_flag(-Werror-unused-lambda-capture)  # error if lambda capture is unused
    add_flag(-Werror-return-type)      # warning: control reaches end of non-void function [-Wreturn-type]
    add_flag(-Werror-non-virtual-dtor) # warn the user if a class with virtual functions has a non-virtual destructor. This helps catch hard to track down memory errors
    add_flag(-Werror-sign-compare)     # warn the user if they compare a signed and unsigned numbers
    add_flag(-Werror-reorder)          # field '$1' will be initialized after field '$2'
    add_flag(-Werror-switch)           # unhandled values in a switch statement
    # cmake-format: on
  endif ()
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
  # https://github.com/lefticus/cppbestpractices/blob/master/02-Use_the_Tools_Available.md#msvc

  fatal_error("MSVC is not supported")
endif ()

print("C flags: ${CMAKE_C_FLAGS}")
print("CXX flags: ${CMAKE_CXX_FLAGS}")

if (COVERAGE)
  include(cmake/coverage.cmake)
endif ()
if (CLANG_TIDY)
  include(cmake/clang-tidy.cmake)
endif ()
if (CLANG_FORMAT)
  include(cmake/clang-format.cmake)
endif ()
if (EMBEDDINGS)
  add_compile_definitions(USE_KAGOME_EMBEDDINGS)
endif ()
if (NOT DEFINED PROFILING)
  if (${CMAKE_BUILD_TYPE} EQUALS "Debug")
    set(PROFILING ON)
  endif ()
endif ()
if (PROFILING)
  add_compile_definitions(KAGOME_PROFILING)
endif ()

include(GNUInstallDirs)
include(cmake/install.cmake)

include_directories($<INSTALL_INTERFACE:${CMAKE_INSTALL_FULL_INCLUDEDIR}/kagome>
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/core>
    $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/core> # for generated file
)

add_subdirectory(core)

kagome_install_setup(
    HEADER_DIRS
    # cmake-format: sortable
    core/application
    core/assets
    core/blockchain
    core/clock
    core/common
    core/consensus
    core/crypto
    core/dispute_coordinator
    core/filesystem
    core/host_api
    core/log
    core/macro
    core/network
    core/offchain
    core/outcome
    core/primitives
    core/runtime
    core/scale
    core/storage
    core/subscription
    core/telemetry
    core/utils
)

include(CMakePackageConfigHelpers)

set(CONFIG_INCLUDE_DIRS ${CMAKE_INSTALL_FULL_INCLUDEDIR}/kagome)
configure_package_config_file(
    ${CMAKE_CURRENT_LIST_DIR}/cmake/kagomeConfig.cmake.in
    ${CMAKE_CURRENT_BINARY_DIR}/kagomeConfig.cmake
    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/kagome)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/kagomeConfig.cmake
    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/kagome)

export(PACKAGE kagome)

if(TESTING)
  add_compile_definitions(CFG_TESTING)
  enable_testing()
  add_subdirectory(test)
endif ()

add_subdirectory(node)